Wall board construction



Filed April e, 1931 BY (W'yINI/ENTOR, Zvffd.

Patented Apr. 25, 1933 CLIFTON a.4 REYNOLDS, oF SAN FRANCISCO, CALIFORNIA" WALL BOARD lcoNs'rmrorIoN y Application ala pril e, 1931. serial No. 527,899. y

This invention relates to an improved vvall board construction.

An object of my invention is to provide an improved wall board construction for building purposes which is particularly suited for use in preventing the escape of heat or cold therethrough.

Another object of my invention is to provide an improved Wall board construction which is Water proof and possessedof fire resisting qualities.

A further object of my invention is to provide an improved wall board construction which is capable of resisting the ordinarily damaging attack or inroads of insects, bugs or the like.

Other objects more or less apparent will present themselves or will be pointedout in' the following description of my invention.

In the accompanying drawing Fig. l is a vertical sectional view showing the construction of the preferred form of my invention; and

Fig. 2 is a vertical sectional view showing my invention embodied in another form.

Referring firstly to Fig. 1, the numeral 1 represents a layer of porous cloth fabric such as burlap having a semi-rigid layer 2, made from a mixture of asphaltum and diatomaceous earth, at each side thereof. The material comprising the layers2is made by heating about one pound of asphaltum until it reaches a liquid state, and then adding about three pounds of diatomaceous earth thereto. The mixture of asphaltum and diatomaceous earth is applied in uniform layers of desired thicknesses to the sides of the layer of fabric While the former is in a semi-liquid state. After the layers 2 have been'applied to the fabric layerl, a covering 3 of paper or other suitable material is placed over the outer surface of each of the layers 2. The adhesive qualities of the asphaltum causes the fabric layer l and the coverings 3 to adhere thereto thereby forming a semi-rigid Wall board construction which is particularly adapted for use in building structures. Owing to the fact that the diatomaceous earth is an inert material the Wall board is able to resist the action of the elements to a greater degree than other Wall board vconstructions .made principally;

from vpayer materials. The layers'2 comprising the odyv of the walllboard, bein somewhat flexible, enablel the same'to e conveniently Vnailed 4to supporting structures without danger oftearing or splitting. The

asphaltum-diatomaceous earthv composition is lparticularly suitable' as ja body capable pi resisting the attacks of insects,bugs or the As shown in Fig.' 2 my invention ma be formed with a plurality of layers of fa ric, paper and the asphaltum-diatom'aceous compound. In this form, a'porous fabric layer 1 is located at the center ofthe wallv board,

and on each side thereof is located a semirigid layer 2 composed of a mixture of asphaltum and'diatomaceous earth. At' each side of thesaid layers 2 is :located a sheet of paper 3, and at the outside of the said sheets Ais again located layers 2. .At-the. outer surfaces of the last mentioned layers 2 is located porous fabric layers 2, and' then outside thereof' are-,located layers2 off the 4asphaltumdiatomaceousearth mixture. `rAtlthe outer surfaces of the last two mentioned layers are located coverings 3 of paper or the like. The Wall board construction .shown inv Fig. 2 is particularly adapted for use lin building structures Where thicker Walls are required.

Although I have specified the layers 2 as comprising a mixture consisting of one part of asphaltum and three parts of diatomaceous earth, it has been found that these percentages may be varied to provide a more or less flexible wallboard construction. In this Vregard I have found that by having the percentage of diatomaceous earth greater than the amount of asphaltum, the mixture from which the layers 2 are formed will be suitable to withstand the ordinary attacks of the ele-v ments and insects.

It is apparent to those skilled in the art that my invention iscapable of assuming a number of different'forms, so for this and other apparent reasons I desire the appended claims to define the limits of my invention.

Having described my invention what I claim is:

1. A wall board construction comprising a layer of porous fabric, and a layer of semirigid material a-tlxed to each side of the fabric, the said layers of semi-ri id material having a composition in whic asphaltum 5 is the main ingredient.

2. A wall board construction comprising a layer of porous fabric, and alayer of semirigid material aixed to each side of the fabric, each layer bein formed from a composition made with asp altum and diatomaceous earth as ingredients.

3. A wall board construction comprising'a layer of porous fabric, a layer of semi-rigid material aiixed to each side of the fabric, each of said layers being comprised of a mixture in which asphaltum is an ingredient, and a vcoverin locatedvover the youter surface of each o? the layers of semi-rigid material. f I 4. AV wall board ,construction comprising a layer of porous fabric, a layer of semirigid material aiiixedto each side of the fabf ric,'each of said layers'beingcomprised of a mixture of diatomaceous earth and asphaltum, and a paper covering aflixed to the outer surface of each of the `semi-rigid layers.v

5. In a wall board construction, a uniform layer of semi-rigid material comprised ofl a f mixture of asphaltum and diatomaceous Y earth. Y

- 6; In a wall board constructioma plurality y l of semi-rigid layers of substantially uniform thickness, each layer being comprised of a mixture of asphaltum and diatomaceous earth, and a covering of paper affixed to each ayer.

.7. lIn a wall board construction, a plurality of-layers of fabric, a semi-rigid layer comprising diatomaceous earth and asphaltum 4o located on each side of each fabric layer, and a paper sheet affixed to each semi-rigid layer. In testimony whereof I have aixed my signature.

.CLIFTON G. REYNOLDS. 

